Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
  • H01R12/50—Fixed connections
  • H01R12/51—Fixed connections for rigid printed circuits or like structures
  • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K7/00—Constructional details common to different types of electric apparatus
  • H05K7/14—Mounting supporting structure in casing or on frame or rack
  • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
  • H05K7/1411—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting box-type drawers
  • H05K7/1412—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting box-type drawers hold down mechanisms, e.g. avionic racks

Definitions

• the present invention relates to avionics equipment. It applies, in particular, to embedded computers.
• the assembly of the backplane boards is realized, in some applications for example ARINC 600, by simple spacers that link the motherboard to the backplane board and which link the backplane assembly to the rear face of the board. equipment.
• the present invention aims to remedy these disadvantages and, in particular, to limit the relative movement between the daughter cards and the motherboard and to limit the deformation of the rear part of the equipment.
• the present invention is an avionic equipment comprising a motherboard, at least one daughter card and, for each daughter card, two supports in the form of a slide fixed directly on the motherboard and supporting said daughter card.
• the avionic equipment as briefly described above comprises two mechanical parts, upper and lower, respectively, each comprising one of the slide-shaped supports of each daughter card.
• the avionic equipment as briefly described above comprises at least one mechanical piece of connection between the motherboard and a backplane board connected to an avionics connector.
• this avionics connector is generally known as the connector "Arinc”.
• at least one mechanical connecting piece between the motherboard and a backplane board further comprises means for fixing the rear face of the avionic equipment.
• At least one mechanical connecting piece between the motherboard and a backplane board further comprises means for fixing the avionics connector.
• At least one mechanical connecting piece between the motherboard and a backplane board further comprises means for fixing the rear face of the avionics equipment and means for fixing the avionics connector.
• the avionic equipment as briefly described above comprises at least one mechanical piece of connection between the motherboard and the avionics connector.
• At least one mechanical connecting piece between the motherboard and the avionics connector further comprises means for fixing the rear face of the avionics equipment.
• the avionic equipment as briefly described above comprises at least one mechanical piece of connection between the motherboard and the rear face of the avionic equipment.
• FIG. 1 represents, in perspective, a particular embodiment of the avionic equipment object of the present invention
• FIG. 2 represents, in perspective, a detail of the particular embodiment of the avionic equipment illustrated in FIG. 1;
• FIG. 3 represents, in section, the avionic equipment illustrated in FIG.
• FIG. 4 represents, enlarged, a part of the avionic equipment of FIGS. 1 to 3,
• FIGS. 5A and 5B show, in perspective, in two views of opposite orientations, a particular embodiment of an upper fastening means of the particular embodiment of FIGS. 1 to 4 and
• FIG. 6 shows, in perspective, a particular embodiment of a lower fastening means of the particular embodiment of Figures 1 to 4.
• an avionics equipment 102 having a lower face 104, a rear face 106, a motherboard 108, locations 110 for seven daughter cards 150 (only one shown in Figure 1) and a backplane board 112 connected to an avionics connector
• 114B of daughter cards 150 comprising, for each daughter card, a slide 116, zone of the support forming a "U" which accommodates the daughter card 150 and, optionally, a card frame which supports the locking slide (complex mechanical part which is expanse) which performs a blocking function.
• the support 114B is directly fixed on the lower part 118 of the motherboard 108 and is adapted to support each of the daughter cards 150 of the avionic equipment 102.
• FIGS. 2 and 3 do not show an upper support 114A symmetrical with the lower support 114B, this upper support 114A being connected to the upper part 120 of the motherboard 108 of the same way that the support 114B.
• This upper support 114A also includes, for each daughter card 150, a slideway 116.
• the upper support 114A is thus adapted to support each of the daughter cards of the avionics equipment 102.
• several upper supports and several lower supports, all directly attached to the motherboard 108 each comprise at least one daughter card retaining slide 116.
• FIGS. 1 and 2 respectively show two and three mechanical parts 122A to 122C for connection between the motherboard 108 and the backplane board 112.
• a fourth mechanical connection piece 122D is located at the bottom part 118 of the card mother 108 but is not visible in the figures.
• these mechanical connecting pieces 122A to 122D take the form of straight struts.
• These mechanical connecting pieces 122A to 122D further comprise means for attaching to the rear face 106 of the avionic equipment 102.
• FIG. 1 also shows a rear-end reinforcement 126, horizontally elongated on the surface internal of the rear face 106, at the top and of section in the shape of "L".
• these fixing means 128A and 128B, illustrated in FIGS. 5A, 5B and 6, take the form of bent spacers.
• the fixing means 128A and 128B are each a single piece which is the link between the following elements: the motherboard, the second backplane board, the avionics connector Arinc (as a priority because it is the connection with the aircraft) and the rear face.
• the same mechanical parts 122A to 122D provide the connection between the motherboard and the backplane board, the connection of the motherboard with the rear face of the avionics equipment. , the connection of the backplane board with the rear face of the avionics equipment.
• these different functions are performed by several different mechanical parts, according to the different combinations. possible of these functions and / or these parts ensure, in addition, the avionics connector attachment function.
• the lower support 114B is aligned with each lower spacer 122C and 122D and with the lower fastening means 128B, the lower motherboard portion 108 being held between the support 114B, on the one hand, and the 122C and 122D lower struts and lower fastening means 128B, on the other hand, by bolts 109.
• the upper support 114A has not been shown.
• the upper support 114A is aligned with each upper spacer 122A and 122B and with the upper attachment means 128A, the upper part 120 of the motherboard 108 being held between the support 114A, on the one hand, and the upper struts 122A and 122B and the upper fastening means 128A, on the other hand, by bolts 109.
• the upper and lower spacers 122A to 122D and the fastening means 128A and 128B comprise plane surfaces 130A and 130B perpendicular to the main elongation of these parts, to support on the one hand, the motherboard 108, as explained above and, on the other hand, the backplane board 112, each bolt 109 passing through these two boards 108 and 112, and between them two parts of the means fastening 128.
• the implementation of the present invention allows the use of a connector "industrial" performance in terms of resistance to vibration, in terms of density of points and in terms cost. It limits the relative movement between the daughterboards and the motherboard. It also limits the deformation of the rear part of the equipment by stiffening the connection between the motherboard and the backplane board and the connection between this assembly and the avionics connector Arinc.

Landscapes

• Engineering & Computer Science (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Mounting Of Printed Circuit Boards And The Like (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)
• Casings For Electric Apparatus (AREA)
• Combinations Of Printed Boards (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (2)

Family

ID=38445595

Family Applications (1)

Country Status (9)

Families Citing this family (36)

Family Cites Families (15)

• 2007
  • 2007-06-21 FR FR0755921A patent/FR2917905B1/fr not_active Expired - Fee Related
• 2008
  • 2008-05-29 JP JP2010512743A patent/JP2010530583A/ja active Pending
  • 2008-05-29 WO PCT/FR2008/050945 patent/WO2008155498A2/fr not_active Ceased
  • 2008-05-29 BR BRPI0811703 patent/BRPI0811703A2/pt not_active IP Right Cessation
  • 2008-05-29 CA CA2707393A patent/CA2707393A1/en not_active Abandoned
  • 2008-05-29 RU RU2010101800/07A patent/RU2487506C2/ru not_active IP Right Cessation
  • 2008-05-29 CN CN2008800209486A patent/CN101707922B/zh not_active Expired - Fee Related
  • 2008-05-29 US US12/665,139 patent/US8576577B2/en not_active Expired - Fee Related
  • 2008-05-29 EP EP08805888.8A patent/EP2174536B1/fr not_active Not-in-force

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